The most significant economic benefit to the United States in importing Canadian oil is that it is much cheaper compared to other foreign oil — U.S. refineries with excess capacity would be able to substitute oil priced roughly $15 per barrel below other imported oil.
http://opinion.financialpost.com/2013/02/19/jack-mintz-the-absolute-case-for-why-the-u-s-should-approve-keystone-xl/
Financial Post: The absolute case for why the U.S. should approve Keystone XL
Blog by Brad Herman | February 19th, 2013
